My E6420 results so far

[mattschaller]

I'd just like to share my overclock results with my new system... and report my love for the E6420.

First, here are my specs:

Intel E6420 2.13GHz
Asus P5B Deluxe
Corsair TWIN2X2048-6400 (5-5-5-15)
Thermalright Ultra 120 Extreme
Scythe SFF21F 120mm

My overclock results:

CPU: 3.208GHz (so far)
FSB: 401MHz
Vcore: 1.35 (Vdroop: 1.304)
Idle: 29c/24c
Load: 43c/40c

Ran Orthos for 27 hours stable.

Since my temps are so low I would really like to push this thing as far as it can go - by going past 400Mhz. I tried running at 415MHz and within the first second, Orthos reported 'Stopped.' Could this be a memory error? My memory is rated at 5-5-5-15 and I currently have it set at 5-5-5-15 when going past 400MHz. Do I need to relax the timings a bit if Orthos stopped all of a sudden, or is that a sign of another problem?

Thanks,

Matt

 

[Conky]

It's not likely a memory error when you are only at 4% overclocked on your memory and you are running fairly conservative timings as well.

More likely is a need for more voltage to the cpu, the NB, or both. I don't know that motherboard but I'm sure you can find some settings that will make it scream. With your current temps I would think that you should be able to make 3.6 or higher with little effort.

 

[SamzAthlon]

load 43c/40c..nice....you must be living in a cold country.

My idle temps are your load temps cus I live in the tropics. LOL

 

[nyker96]

very nice results. I think your CPU is in need of more volts to go higher.

 

[SerpentRoyal]

Your Vcore is similar to my E4300 @ 3.24GHz (1.365V). I use Speedfan and S&M to monitor temperature. S&M is similar to TAT...+15C. My Orthos load temperature with 79F room and Big Typhoon is 53C (SF)/68C (TAT). 10C is a big drop, even with a soldered heat cap and Ultra 120 Extreme.

This chip is stable @ 3.51GHz with 1.505Vcore (68C SF/82C TAT). It could go higher, but the Big Typhoon cannot keep up with the heat output at higher Vcore.

 

[bryanW1995]

Originally posted by: SerpentRoyal
Your Vcore is similar to my E4300 @ 3.24GHz (1.365V). I use Speedfan and S&M to monitor temperature. S&M is similar to TAT...+15C. My Orthos load temperature with 79F room and Big Typhoon is 53C (SF)/68C (TAT). 10C is a big drop, even with a soldered heat cap and Ultra 120 Extreme.

This chip is stable @ 3.51GHz with 1.505Vcore (68C SF/82C TAT). It could go higher, but the Big Typhoon cannot keep up with the heat output at higher Vcore.

I can't get speedfan to work on my wife's computer. Where can I find s&m?

 

[SerpentRoyal]

Originally posted by: bryanW1995
<div class="FTQUOTE"><begin quote>Originally posted by: SerpentRoyal
Your Vcore is similar to my E4300 @ 3.24GHz (1.365V). I use Speedfan and S&M to monitor temperature. S&M is similar to TAT...+15C. My Orthos load temperature with 79F room and Big Typhoon is 53C (SF)/68C (TAT). 10C is a big drop, even with a soldered heat cap and Ultra 120 Extreme.

This chip is stable @ 3.51GHz with 1.505Vcore (68C SF/82C TAT). It could go higher, but the Big Typhoon cannot keep up with the heat output at higher Vcore.</end quote></div>
I can't get speedfan to work on my wife's computer. Where can I find s&m?

http://www.benchmarkhq.ru/english.html?/be_cpu.html

 

[StopSign]

24 degree idle? Geez, that must be a really cold room you're in.

 

[mattschaller]

More likely is a need for more voltage to the cpu, the NB, or both.

Will try both. How high can the NB Vcore be pushed before I need to start worrying? I have it set to 1.25v right now.

load 43c/40c..nice....you must be living in a cold country.

24 degree idle? Geez, that must be a really cold room you're in.

I actually live in Florida -- TAT, Speedfan, RMClock read those temps while I had the case closed in my living room. I've since moved the case into my room, and the idle and load temps have gone up unfortunately -- but I expected that. I believe the cores are idling at 35/31 and load at 47/42 now. I may move my case around -- the exhaust fan is up against the back of my desk, so it may prohibit the expulsion of hot air.

Is it normal for the second core to be running cooler than the first one at all times? I found that interesting. Also, while running Orthos, the second core lags behind when completing tests. Is this normal?

 

[mattschaller]

Ok, I'm getting pretty pissed off.

I moved the computer into my room -- I'm using the same settings as above, and my computer keeps restarting after an hour or so of Orthos. My cores are running at 50c/46c.

I ran Orthos 27 hours stable out in my living room -- with lower core temps, but now that I've moved it into my room, I can't even get past 2 hours!?

Does anyone have any ideas?

Thanks,

Matt

 

[Nnyan]

Even at the new temps you would think that its not a problem, but then the only thing you did was move it to a hotter room. I would try running it stock and see if it passes Orthos for a good duration. If it DOES then maybe your temp readings are off and the CPU is over heating? Not sure what else it could be but I've had 5 C2D's so far (various builds) and 24c is pretty darn low at 400FSB.

 

[mattschaller]

I would leave Orthos running at night and when I woke up, the system had rebooted. I think this was because Automatic Updates was automatically rebooting at 3am to install updates. I turned off that feature, and will see if it does it again tonight.

Anyway, Orthos has been running for almost 7 hours now at 3.2GHz. I bumped the Vcore up by .125 -- with the Vdroop it's at 1.312v load, whereas I was 27 hours stable at 1.304v. Also, I bumped the Vdimm back up to 2.0 from 1.9 -- I think I moved it down to 1.9 when I read that was what my memory was rated at (I think I did that around the time I moved the PC into my room). I am going to let Orthos keep going while running TAT (52c/47c currently) overnight to see if I can reach 24 hours again.

 

[yuriz43]

Hey, I have almost the exact same setup.


P5B deluxe
2GB Corsair 6400
Intel E6420


I had my CPU stable at 3.2 on another mobo(P35 board), but this one keeps crashing after 4 min of Orthos. What bios are you using? And could you give me some details to your OC settings?

Thanks!

 

[lopri]

Which Orthos? Small, Large, or Blend? SmallFFT has little to do with memory.

 

[yuriz43]

yeah SmallFFT... I have been doing CPU stress test

 

[orion23]

If you wanted to go higher, you'll need better RAM.

Corsair is about the crappiest RAM in terms of overclock potential.

Get some cheap PC2-8500 or some D9 G.Skill PC2-6400!

 

[SerpentRoyal]

The majority of 400MHz RAM (rated at 1.8V) should be able to hit at least 440MHz with 2.0-2.1Vdimm and 5-5-5-15 timing. Use Memtest 86+ (test #5 for 15 minutes) to verify that your RAM is good. My Kingston DDR2 800 ValueRAM is stable at 480MHz with 2.1Vdimm and 4-4-4-12-2T timing. Lowering timing to 5-5-5-18-2T yields 540MHz!

 

[yuriz43]

So increasing my Vdimm will improve stability?

I actually just ran Orthos for 5 hours with no errors with the following settings


FSB 401 8x multi 1:1 Divider
1.4125 Vcore ( in Everest it reads 1.35-1.4 load )

Northbridge V 1.45

Vdimm 1.9

The one weird thing is that my bios reads PC-4300 at post, however CPU-z and everything reads the correct value, which is DDR 800 PC-6400

Should I stick with this?

 

[SerpentRoyal]

No need to raise Vdimm if RAM is stable under Memtest 86. If the RAM is rated at 400MHz with 1.8Vdimm, then you should retest at the lower voltage. Use the absolute minimum voltage to get the job done. I normally don't bother running Othos (large mode) for more than one hour, since none of my applications will ever tax both cores to that level. I also like to test the PC in 85F ambient air. Another more stringent test for stability is 15 minutes of S&M's HEAT mode. S&M will generally require an additional 0.02Vcore to achieve stability if the rig is marginally stable with Orthos.